WO2008009204A1 - A vertical oil-water-gas mutiphase flow separation regulating means and the measure device thereof - Google Patents

Abstract

A vertical oil-water-gas multiphase flow separation regulating means comprises an outer housing (2), a fluid outlet pipe (1), a fluid inlet pipe (8) and a drainage pipe (7). A vertical close separation chamber in which there is a screw guide separation device is provided in the outer housing (2). Fluid overflow holes are provided between the screw guide separation device and the close separation chamber. A stationary homogeneous mixer (16) is provided in the fluid outlet pipe (1). The screw mixer's inlet of the screw guide separation device is connected with the fluid inlet pipe (8) and a guide separator (5) is installed above the screw mixer (6). The outlet of the guide separator (5) is connected with the fluid outlet pipe (1). The bottom of the separation chamber is connected with a liquid collection measure pipe that comprises a liquid outlet pipe and a liquid regurgitation pipe. The fluid inlet pipe (8) comprises an interior layer (27) that connected with the fluid inlet and an outer layer (26) that connected with the regurgitation pipe. The outlets of the interior layer (27) and the outer layer (26) are connected with the screw mixer (6). The invention also discloses a vertical oil-water-gas multiphase flow measure device using the abovementioned separation regulating means. The device according to the invention is simple, low in cost, easy to maintenance and emendation, with greater accuracy.

Description

 (1) Technical field

 The invention relates to a vertical oil-water-gas multi-phase flow separation and rectification device and a detection device for measuring oil-water-gas multi-phase fluid.

 (2) Background technology

 With the rapid development of the world economy, the world's energy issues have been regarded as an important national strategic content. Especially in the case of limited world oil reserves, how to effectively exploit and monitor oil and gas field mining, how to monitor oil and gas production in real time has become the consensus of the petroleum industry. The use of high-tech, relatively inexpensive on-line measurement techniques to replace existing high-cost, low-precision, separation-tank production models is a recent consensus in the petroleum industry.

 At present, the oil field generally uses a separation tank to separate the multiphase flow from the gas and the liquid, and then measures the single phase fluid. The oil moisture rate is measured by the chemical separation method in the laboratory after the sample is used to realize the multiphase flow measurement. . The disadvantages of this measurement system are: The separation structure is complex, the volume is large, the cost is high, the maintenance is difficult, the real-time online measurement cannot be realized, and it is not suitable for seabed measurement.

 At present, research and development using the radioactive materials to measure the oil moisture rate in the world has achieved certain results. However, due to restrictions on radioactive materials, consideration of the operator's personal safety, etc., this method is difficult to promote and practical in the industry.

 (3) Invention content

In order to overcome the deficiencies of the existing separation rectifying device, such as complicated structure, high cost, difficult maintenance, high correction cost and low measurement precision, the present invention provides a vertical structure with simple structure, low cost, convenient maintenance, simple correction and high measurement precision. Oil-water-gas three-phase flow separation and mixing device and its measuring device. The technical solution adopted by the present invention to solve the technical problem thereof is:

 A vertical oil-water-gas multi-phase flow separation and rectification device, the separation rectification device comprising a casing, a fluid outlet pipe, and a fluid introduction pipe, wherein an upper end of the casing is provided with a fluid outlet pipe, and a lower end of the casing is provided a fluid introduction tube, a bottom of the outer casing is provided with a drain conduit, the inner casing is a vertical closed separation chamber, and the closed separation chamber is provided with a swirling and guiding separation device, and the swirling and guiding flow is a fluid overflow hole is disposed between the separation device and the sealed separation chamber; the swirling and guiding separation device includes a spinner and a flow separator, and the inlet of the spinner is connected to the fluid introduction tube, a flow separator is mounted above the spinner, the outlet of the flow divider is connected to the fluid outlet tube; the bottom of the sealed separation chamber is connected to a liquid collection measuring conduit, and the liquid collection measuring conduit comprises a liquid outlet tube and a liquid a return conduit; the fluid discharge tube is provided with a static homogenizing rectifier; the fluid introduction tube includes an inner layer communicating with the fluid inlet and communicating with the return tube In the outer layer, the outlets of the inner layer and the outer layer are in communication with the inlet of the spinner.

 Further, the spinner is a double-screw type spinner, and the double-screw type spinner includes a configuration tube, two identical common spiral monomers, and rotation directions of the two common spiral monomers. The same and symmetrically distributed, the spiral monomer is located within the configuration tube.

 Further, the flow guiding separator is not less than two, and the adjacent flow guiding separators are connected in series with each other.

 Further, the flow deflector includes an upper deflector separator and a lower deflector separator, and the upper deflector separator extends into a lower portion of the fluid outlet tube and leaves a certain gap; A fluid overflow hole is provided between the separator and the lower deflector separator, and between the lower deflector separator and the spinner.

The upper ends of the lower deflector separator and the spinner are both a parapet structure, and the lower part of the lower deflector and the upper deflector is a two-layer structure that cooperates with the tube portion of the parapet portion, the spin The upper end of the lower end of the lower diversion separator extends into the middle of the double-layer structure of the lower diversion separator, and the upper end of the lower diversion separator extends into the upper diversion separator In the middle of the layer structure.

 A homomixer is disposed inside the fluid discharge tube.

 The liquid collection measuring catheter further comprises a valve, a liquid stability adjusting device, the valve is mounted on the liquid outlet pipe, the inlet of the liquid stability adjusting device is connected to the liquid outlet pipe, and the outlet of the liquid stability adjusting device is connected to the liquid returning tube.

 The upper end of the liquid stability adjusting device is provided with a communication pipe, the communication pipe is connected with the upper side of the vertical sealed separation chamber, the communication pipe is provided with a gas valve, and the bottom of the liquid stability adjusting device is provided Drain the valve.

 A liquid homogenizer is installed in the liquid return pipe.

 A measuring device realized by the vertical oil-water multiphase flow separation and rectification device, comprising a vertical oil-water multi-phase flow separation and rectification device, and a pressure difference sensor for measuring a pressure difference of a static homogenizer in a fluid discharge pipe a pressure sensor for measuring line pressure, a speed sensor, a sensor for measuring the density of the liquid, a thermometer for measuring the temperature of the line, and a signal processor for calculating the flow rate of each phase and the moisture rate of the oil according to each signal, the vertical oil and gas gas The fluid introduction tube and the fluid outlet tube of the multi-phase flow separation and rectification device are installed on a pipeline to be vertically detected, and the two measurement tubes of the pressure difference sensor and the upstream of the static homogenizer installed in the fluid outlet tube, The downstream flow is in communication, the pressure sensor is disposed in communication with a downstream flow of the stationary homomixer in the tube; the speed sensor is installed in a downstream flow of the stationary homomixer in the fluid discharge tube, the density The sensor is installed downstream of the static mixer of the liquid return pipe, and the thermometer is installed in the liquid The return pipe, said pressure difference sensor, pressure sensor, speed sensor, a density sensor, a thermometer, an output connected to a signal processor.

The working principle of the invention is: introducing a multi-phase fluid into the swirling cavity of the double-screw type spinner by using a fluid introduction tube and forming a rotating fluid; due to the centripetal force, the fluid with a higher density moves radially outward, A fluid with a small density will be left near the axis by a small effect on the centripetal force. When the gas-liquid mixed phase flow passes through the spinner The tube section is formed with a gradually increasing density from the center of the circle to the radially outward direction; when the multiphase flow flows along the axial direction of the spinner, a portion of the denser fluid passes through the overflow of the outer end of the spinner. The holes flow into the closed separation chamber. Due to the different densities of the phases of the mixed phase flow, the separated liquid collects at the bottom of the closed separation chamber. When the valve on the liquid discharge pipe is opened, the liquid flows from the liquid discharge pipe into the liquid stability adjusting device due to the force of gravity, and the liquid return pipe is disposed at the lower portion of the liquid stability adjusting device; and the liquid return pipe and the fluid introduction pipe The outer layers are connected. When the mixed phase fluid flows through the inner layer of the fluid introduction tube, since the speed is large, a pressure difference between the inner layer pressure and the outer layer pressure is formed, so that the liquid filled in the liquid return tube is sucked into the fluid introduction tube. Thereby returning to the swirling chamber of the spinner. A portion of the liquid that has flowed back into the swirl chamber flows out of the body through the swirl chamber, and a portion of the liquid is re-spinned and separated into the closed chamber of the body. This mixed separation method is characterized in that the liquid is fully filled with the liquid collecting pipe even at a high gas volume ratio, and in order to further maintain the homogeneity of the multiphase liquid, a special static mixer is arranged in the liquid return pipe, thereby The oil moisture sensor installed below provides a homogeneous and stable liquid flow pattern, thereby improving the measurement accuracy of the oil moisture rate and ensuring high-precision real-time measurement of the liquid oil moisture rate or density. When the liquid in the separation chamber is excessively accumulated, the excess liquid that cannot be recirculated through the liquid conduit in time is sucked into the body by the siphon action of the swirling deflector.

By the automatic adjustment of the spinner and the separation chamber, the separation and rectification of the gas-liquid mixed phase flow can be realized, and the local change of the mixed phase flow pattern can be realized, thereby realizing the mixing, rectification and homogenization treatment of the mixed phase flow. When these fluids pass through a special static homogenizing rectifier in the fluid discharge tube, they will be remixed and homogenized to provide a homogeneous and stable multiphase flow pattern for the speed sensor installed below. The measurement accuracy of the gas-liquid two-phase fluid. The liquid collection measuring conduit is composed of a liquid outlet pipe, a flow regulating valve and a liquid return pipe, a moisture meter/density meter, and a homomixer disposed in the upflow pipe. The flow regulating valve provided on the liquid outlet pipe is used to adjust the liquid in the separation chamber when the separation device is within the flow specification range, and the liquid conduit can be filled as much as possible. The upper portion of the liquid stability adjusting device is provided with a gas conduit and a closed separation chamber, and the gas conduit is provided with a valve for adjusting the stability of the stability device; when the liquid collected in the inner cavity of the housing cannot be completely transported through the liquid conduit, Part of the liquid from the crucible will enter the diversion separation chamber through the overflow hole of the swirling flow separation device and exit the device through the fluid discharge tube. A portion of the liquid at the bottom of the housing interior is re-screwed by a liquid collection measuring conduit into the fluid conduit. Some of the chambers re-enter the housing cavity as previously described, and a portion is discharged through the deflector. Through the multiple separation and mixing of the mixed fluid, multiple cycles and mixing of the mixed fluid can be realized, that is, the real-time collection of the liquid can be achieved, and the purpose of collecting the liquid can be realized, thereby providing real-time as much as possible. Stable liquid change pattern and mixed phase flow pattern improve the measurement accuracy of oil moisture rate.

 A vertical oil-water multi-phase flow measuring device realized by the gas-liquid multiphase flow separation rectifying device, comprising a multi-phase flow separation rectifying device and a signal collecting device, wherein the signal collecting device comprises measuring a pressure loss of the fluid A differential pressure gauge, a pressure gauge for measuring line pressure, a speed sensor for measuring the average velocity of the mixed phase fluid, a sensor for measuring the oil moisture rate or liquid density of the liquid, a thermometer for measuring the temperature of the pipeline, and a signal processor. The differential pressure gauge is used to measure the pressure loss of the static mixer disposed in the fluid discharge tube, the pressure gauge is used to measure the pressure of the fluid discharge portion, and the speed sensor is disposed at the fluid outlet tube end for measuring the average velocity of the mixed fluid, the oil moisture rate The sensor is disposed in the liquid collection measuring conduit, and a homogenizer is disposed on the upper flow, and the temperature sensor is disposed on the liquid return pipe for measuring the temperature of the liquid.

Firstly, an instrument or a sensor capable of measuring the oil moisture rate or density of the liquid is installed on the liquid collection measuring catheter connected to the body closed separation chamber, and real-time measurement of the oil moisture rate or density is performed on the liquid and the corresponding signal is obtained; The velocity of the end of the static homogenizer in the aforementioned fluid outlet tube The sensor measures the corresponding signal of the average flow rate of the multiphase flow or the corresponding signal of the average volume flow; the pressure difference sensor and the pressure sensor are used to measure the pressure loss and the corresponding signal of the pressure of the static mixer, and the foregoing signals are determined by a certain calculation method. The processing calculations are performed to obtain the oil moisture rate/density of the corresponding multiphase flow, the gas volume ratio, the gas, the flow rate or volume flow of the liquid, the total volume flow of the mixed fluid, and the corresponding mass flow of each phase.

 The beneficial effects of the invention are mainly as follows: 1. The structure is simple, the cost is low, the maintenance is convenient, and the correction is simple; 2. The mixed phase fluid of the vertical pipeline can be directly measured, and no horizontal pipeline is needed; 3. The phase fluid of the multiphase flow can be improved The measurement accuracy; 4. The mixed phase fluid with high gas volume ratio has obvious uniform rectification effect.

(4) Description of the drawings

 Figure 1 is a cross-sectional view of a vertical gas-liquid multiphase flow separation rectification device.

 Figure 2 is a front view of the vertical gas-liquid multiphase flow separation and rectification device.

 Figure 3 is a cross-sectional view of the pressure measurement of the vertical gas-liquid multiphase flow separation rectifier.

 Figure 4 is a side elevational view of the vertical gas-liquid multiphase flow separation rectification device.

 Fig. 5 is a structural view of a fluid introduction tube portion.

 Fig. 6 is a structural view of a fluid discharge pipe portion.

 Figure 7 is a partial view of a spiral deflector.

 Figure 8 is a structural view of a double helix spinner.

 Fig. 9 is a structural diagram showing an example of a flowmeter based on a vertical gas-liquid multiphase flow separation rectifying device.

 (5) Specific implementation methods

 The invention is further described below in conjunction with the drawings.

 Example 1

Referring to FIG. 1-8, a vertical oil-water-gas multiphase flow separation and rectification device includes a casing 2, a fluid outlet pipe 1, and a fluid introduction pipe 8. The upper end of the casing 2 is provided with a fluid outlet pipe 1, Under the outer casing 2 The end of the outer casing 1 is provided with a drain conduit 7, the inner casing 2 is a vertical closed separation chamber, and the closed separation chamber is provided with a swirling and guiding separation device. a fluid overflow hole is disposed between the swirling and guiding separation device and the sealed separation chamber;

 The swirling and guiding separation device comprises a spinner 6 and a flow separator 5, the inlet of the spinner 6 is connected to the fluid introduction pipe 8, and the deflector 5 is installed above the spinner 6. The outlet of the flow separation separator 6 is connected to the fluid discharge pipe 1; the bottom of the closed separation chamber is connected to a liquid collection measurement conduit, and the liquid collection measurement conduit includes a liquid discharge pipe 14 and a liquid return pipe 9; There is a stationary homogenizing rectifier 16;

 The fluid introduction tube 8 includes an inner layer 27 in communication with the fluid inlet, and an outer layer 26 in communication with the liquid return tube 9, the outlet of the inner layer 27 and the outer layer 26 being in communication with the inlet of the spinner 6.

 The liquid collection measuring catheter further includes a flow regulating valve 15, a liquid stability adjusting device 12, a pipe 13a at the upper portion of the liquid stability adjusting device 12 and a closed separation chamber, and a liquid homogenizer 10, the liquid homogenizing The mixer 10 is installed in the liquid return pipe 9; the spinner is a double helix spinner 6, and the spinner includes two identical common spiral monomers 29, 30, two common spiral singles The body is arranged symmetrically;

 The deflector separator includes an upper deflector separator 23 and a lower deflector separator 24, and the upper deflector separator 23 extends into the lower portion of the fluid outlet tube 1 with a certain gap; A fluid overflow hole is provided between the flow separator 23 and the lower flow separator 24, and between the lower flow separator 24 and the outer tube 25 of the spinner. The inside of the fluid discharge pipe 1 is provided with a stationary homogenizing rectifying mixer 16. The stationary homogenizing rectifying mixer 16 is fixed in the fluid discharge pipe by a fixing bolt 22 and a sealing ring 21. A special liquid homogenizer 10 is provided in the liquid return pipe 9. A regulating valve 13 and a draining valve 11 are mounted on the liquid stabilizer.

The working process of the embodiment is: introducing a gas-liquid multiphase flow from the introduction pipe 8 into the spinner 6 to perform the rotation, and obtaining a phase difference fluid having a radial rotation speed to generate a density difference distribution layer under the action of the centripetal force, which is heavier. of The fluid enters the closed separation chamber through the overflow hole of the swirling flow separation device. Due to the different densities of the phases of the mixed phase stream, the separated liquid collects at the bottom of the separation chamber. When the regulating valve 15 on the liquid discharge pipe 14 is opened, the liquid will flow from the liquid discharge pipe 14 into the liquid stability adjusting device 12 due to the action of gravity, and then enter the liquid return pipe 9 from the lower portion of the liquid stability adjusting device 12; The liquid return pipe 9 is in communication with the outer layer 26 of the fluid introduction pipe 8. When the fluid of the main pipe flows through the inner layer 27 of the fluid introduction pipe, the pressure of the inner layer is large due to the high speed, and the pressure of the outer layer is high. A small pressure difference, so that the liquid filled in the liquid return pipe 9 is sucked into the spinner 6. A part of the liquid flowing into the cavity of the gyrator 6 flows out of the fluid discharge pipe 1 through the vortex chamber and the flow separator 5, and a part of the liquid is re-spinned and separated into the body separation chamber. This mixed separation method is characterized in that the liquid can be sufficiently filled with the liquid collecting pipe even in the case of a high gas volume ratio; in order to further maintain the stability of the collected liquid, the device is also provided with the liquid stabilizing adjusting device 12, due to the miscible phase The pulsating characteristics of the fluid and a part of the gas are also precipitated due to the pressure drop during the liquid stability adjusting device 12, and the pipe disposed in the upper portion of the liquid stabilizer adjusting device 12 is in communication with the body cavity, and the adjustment is provided on the communicating pipe. The valve 13 can promptly discharge the evolved gas to the liquid stability adjusting device 12, in order to further maintain the stability of the liquid, and a special static homogenizer 10 is disposed in the liquid return pipe 9, thereby providing an oil moisture sensor installed below Provides a homogeneous and stable liquid flow pattern, which improves the measurement accuracy of the oil moisture rate and ensures high-precision real-time measurement of the liquid oil moisture rate or density.

 In order to discharge the impurity or solid matter accumulated in the device in time, the device is also provided with a drain pipe 7 on the side of the outer casing 2 and a valve below the liquid stabilizer adjusting device 12.

 Example 2

Referring to Figures 1-8, the spinner 6 of the present embodiment is a double helix spinner, and the double helix accelerator is composed of two constant spiral monomers 29, 30, and the rotation angle of the constant spiral monomer is Multiples of 180 degrees; the two spiral monomers are symmetrically arranged and closely fit or integrated with the inner wall of the placement tube. The lower guide flow The upper end portions of the separator 24 and the spinner 6 are both a parapet structure, and the lower portion of the lower deflector 24 and the upper deflector 23 is a two-layer structure that cooperates with the tube portion of the parapet portion, the spinner The upper end portion of the lower end portion of the lower flow guiding separator 24 extends into the middle of the two-layer structure of the lower flow guiding separator 24, and the upper end portion of the lower flow guiding separator 24 extends into the middle of the double layer structure of the upper flow directing separator 23. The middle portion of the double-layer structure is inserted into the lower end screw with the tube portion of the parapet portion. The inner layer of the two-layer structure is an inner hole device having a certain degree of conicality.

 In order to reduce the pressure loss of the separating and mixing device, in the gyrator 6, the shaft center portion of the double-spiral rotator of the outer diameter Φ 设置 is provided with a certain size of the inner hole Φ Β.

 In this embodiment, the gas-liquid mixed fluid is rotated by a constant spiral type spinner, the mixed phase flow is separated by centripetal force, and then the natural fluid is separated by using the density of the mixed fluid, and then passed through a special liquid collecting device, and the liquid is separated. The recirculating cycle mixes the structure, and then mixes, refines, homogenizes, and rectifies the mixed fluid using a special static mixer to provide a stable and homogeneous multiphase flow mode mixed phase flow measuring device for the vertical installation pipeline. Further, since the device is provided with a liquid collecting device with good stability, the oil moisture rate measuring device is installed here, and the measurement accuracy of the oil moisture rate can be greatly improved. And because of its compact structure, the sensors are suitable for sealing, pressure, explosion-proof, etc., and can be suitable for on-line measurement at sea and undersea.

 Example 3

Referring to FIG. 1 to FIG. 9, a vertical oil-water-gas multi-phase flow measuring device comprises a vertical oil-water-gas multi-phase flow separation and rectification device, a pressure difference sensor, a pressure sensor C for measuring a line pressure, a speed sensor F, and a measurement. a liquid density sensor D, a thermometer E for measuring the temperature of the pipeline, and a signal processor G for calculating the flow rate of each phase and the oil moisture rate based on the respective signals, the fluid introduction pipe of the vertical oil-water multiphase flow separation and rectification device 8. The fluid discharge pipe 1 is installed on the pipeline to be inspected, and the pressure difference sensor A is installed in the static homogenizer 16 provided in the fluid discharge pipe 1, and the pressure measurement pipeline 4 is disposed in the fluid discharge pipe. The upper and lower ends of the stationary homogenizer 16, the pressure sensor C is provided Placed on the pressure measuring line 4; the speed sensor F is installed downstream of the static homogenizer 16 in the fluid discharge tube, and the density sensor D is installed in the downstream of the static mixer 10 of the return line. The thermometer E is mounted on the return pipe 9, the pressure difference sensor B, the pressure sensor C, and the speed sensor. The output of the density sensor D and the thermometer E is connected to the signal processor 0.

 A typical application example of the present embodiment is to measure the density or oil moisture rate in the liquid by using the density sensor D, measure the volume flow rate of the mixed fluid by using the speed sensor F, and measure the liquid and gas components by using the Venturi principle. A new type of fluid measuring instrument for multiphase fluid measurement. The embodiment has the advantages of simple and compact structure, small volume, low cost, safe and simple explosion-proof.

 This embodiment consists of two parts, a signal collection system and a signal processing system. The signal collection system consists of a special static homogenizing rectifier 16 disposed inside the aforementioned fluid discharge tube, measuring line 4 and associated joints (4-1), (4-2), (4-3), (4-4). ) constitutes. The pressure difference sensor B of the static mixer is measured, the pressure sensor C for measuring the line pressure, the speed sensor (F) and the sensor D for measuring the liquid density, the signal processor G, and the thermometer E for measuring the temperature of the line. The signal processing section consists of a special process control computer module with signal conversion and calculation functions. It can perform various signal conversion (A/D), calculate the flow of each phase, oil moisture rate and signal transmission and storage functions.

 This embodiment is mainly applied to unmanned oil well metering/testing, reservoir dynamic monitoring and production real-time monitoring, replacing conventional separation tank measurement technology, and providing real-time online multi-phase flow measurement, testing and monitoring of oil wells. In particular, the dynamic monitoring of harsh offshore or desert oil fields provides real-time continuous data for oilfield operators, enabling dynamic monitoring of reservoirs and providing real-time multiphase gas, liquid phase flow and moisture rates. Change information and provide important data for production optimization.

Claims

Claim A vertical oil-water-gas multi-phase flow separation and rectification device, characterized in that: the separation rectification device comprises a casing, a fluid outlet pipe, and a fluid introduction pipe, and the upper end of the casing is provided with a fluid outlet pipe, The lower end of the outer casing is provided with a fluid introduction pipe, the bottom of the outer casing is provided with a drain conduit, the inner casing is a vertical closed separation chamber, and the closed separation chamber is provided with a swirling and guiding separation device. a fluid overflow hole is disposed between the swirling and guiding separation device and the sealed separation chamber; the swirling and guiding separation device includes a spinner and a flow separator, and the inlet of the spinner is connected to the fluid. An introduction tube, the flow separation separator is installed above the spinner, the outlet of the flow separator is connected to the fluid outlet tube; the bottom of the sealed separation chamber is connected to a liquid collection measuring catheter, and the liquid collecting measuring catheter Including a liquid outlet tube and a liquid return tube; a static homogenizing rectifier mixer is disposed in the fluid outlet tube; The fluid introduction tube includes an inner layer in communication with the fluid inlet and an outer layer in communication with the return tube, and the outlets of the inner layer and the outer layer communicate with the inlet of the spinner.  2. The vertical oil-water-gas multi-phase flow separation and rectification device according to claim 1, wherein the rotator is a double-normal spiral type rotator, and the double-normal spiral type rotator includes a configuration. a tube, two identical normally spiral monomers, wherein the two normally helical monomers rotate in the same direction and are symmetrically distributed, and the spiral monomer is located in the configuration tube.  The vertical oil-water-gas multi-phase flow separation and rectification device according to claim 1 or 2, wherein the flow-conducting separator is not less than two, and the upper and lower adjacent flow-conducting separators are Made in series with each other. The vertical oil-water-gas multi-phase flow separation and rectification device according to claim 3, wherein: the flow guiding separator comprises an upper diversion separator and a lower diversion separator, and the upper diversion flow The separator extends into the lower portion of the fluid discharge pipe and leaves a certain gap; between the upper diversion separator and the lower diversion separator, A fluid overflow hole is provided between the lower deflector separator and the spinner.  The vertical oil-water-gas multi-phase flow separation and rectification device according to claim 4, wherein: the upper end portions of the lower diversion separator and the revolver are both a parapet wall structure, a lower deflector and an upper portion. The lower part of the deflector is a two-layer structure that cooperates with the pipe portion of the parapet wall portion, and the upper end portion of the spinner extends into the middle of the double-layer structure of the lower deflector separator, and the upper end of the lower diversion separator The portion extends into the middle of the double layer structure of the upper deflector.  6. The vertical oil-water-gas multi-phase flow separation and rectification device according to claim 1 or 2, wherein: the liquid collection measurement conduit further comprises a valve and a liquid stability adjustment device, wherein the valve is mounted on the liquid discharge pipe. The inlet of the liquid stability adjusting device is connected to the liquid discharge pipe, and the outlet of the liquid stability adjusting device is connected to the liquid return pipe.  The vertical oil-water-gas multi-phase flow separation and rectification device according to claim 6, wherein the upper end of the liquid stability adjusting device is provided with a communication pipe, and the communication pipe and the vertical sealed separation chamber are above Connected, the connecting pipe is provided with a gas valve, and the bottom of the liquid stability adjusting device is provided with a drain valve. The vertical oil-water-gas multiphase flow separation and rectification device according to claim 6, wherein a liquid homogenizer is installed in the liquid return pipe. 9. A measuring device realized by the vertical oil-water-gas multi-phase flow separation rectifying device according to claim 1, wherein: said measuring device comprises a vertical oil-water-gas multi-phase flow separation rectifying device, and a pressure difference a sensor, a pressure sensor for measuring line pressure, a speed sensor, a sensor for measuring the density of the liquid, a thermometer for measuring the temperature of the line, and a signal processor for calculating the flow rate of each phase and the moisture rate of the oil according to each signal, the vertical oil and gas gas The fluid introduction tube and the fluid outlet tube of the multiphase flow separation rectifier are connected to the vertical pipeline, and the two measurement communication tubes of the pressure difference sensor are respectively connected to the upstream and downstream flows of the static homogenizer installed in the fluid outlet tube. The measuring tube of the pressure sensor is in communication with a low pressure end of the static homogenizer; the speed sensor is mounted in the fluid outlet tube. The downstream of the homogenizer, the density sensor is installed downstream of the static mixer of the liquid return pipe, the thermometer is mounted on the liquid return pipe, the pressure difference sensor, the pressure sensor, the speed sensor, the density sensor The output of the thermometer is connected to the signal processor.